Exam 1 Peds - Summary Set Flashcards
Detergent-like lipoproteins detectable by 24-25 weeks
surfactant
____ reduces surface tension within the alveoli
surfactant
which substance increases during labor and immediately after birth?
surfactant
what can be given to preterm babies to increase surfactant production and lung maturity? (med, route, timing)
betamethasone IM injection x2
what condition can delay surfactant production?
diabetes
what are the 4 types of triggers that make a newborn breathe?
(1) chemical
(2) mechanical
(3) thermal
(4) sensory
expelling fluid or chest compression during birth are examples of ____ triggers for newborn respiration
mechanical
changes in environmental temperature is a ____ trigger for newborn respiration
thermal
what are 5 sensory triggers for newborn respiration?
(1) touch
(2) light
(3) sounds
(4) smells
(5) discomfort
increased PaO2 when the newborn breathes in air leads to ____
closing of the shunts (ductus venosus, ductus arteriosus, and foramen ovale)
what are the 4 predisposing factors to heat loss?
(1) thin skin with blood vessels close to surface
(2) little SQ fat
(3) 3x more SA to body mass than adults
(4) rate of heat loss is 4x greater than that of adults
____ is the protective factor against heat loss in newborns
flexed position
the 4 methods of heat loss are…
(1) evaporation
(2) conduction
(3) radiation
(4) convection / air
name the 3 nursing implications for evaporation heat loss
(1) keep infant dry
(2) remove wet diapers
(3) minimized exposure during baths
name the 2 nursing implications for conduction heat loss
(1) put baby on prewarmed sheet
(2) cover scales / x-rays with warm blanket
name the 2 nursing implications for radiation heat loss
(1) keep baby cot away from cold outside walls
(2) cover the baby if stable
name the 4 nursing implications for convection heat loss
(1) avoid air current
(2) manage babies inside incubator
(3) organize work to minimize opening portholes
(4) provide warm, humidified O2
name at least 3 s/s of a cold infant
(1) restlessness
(2) crying
(3) increased flexion and activity
(4) vasoconstriction - acrocyanosis
(5) metabolism rises
___ is a normal finding in infants, caused by vasoconstriction, and can be an early sign of a cold infant
acrocyanosis
____ is the primary source of heat production
non-shivering thermogenesis
where is brown fat located in infants?
(1) neck
(2) shoulders
(3) back
brown fat appears at ____ weeks
26-30 weeks gestation
brown fat increases until ___
2-5 weeks after birth
newborns can increase heat by ____ using the NST method
100%